baber/WOPTO huggingface dataset:
Patent GB-802928-A (GB)
Title: Improvements in and relating to pressure-controlled electric switch means
IPC: H01H35/00
Filed: 1956-02-25
Abstract: 802,928. Retractive switches; contacts. FORD, E. H. April 24, 1957 [Feb. 25, 1956], No. 5955/56. Class 38 (5). [Also in Group XXXVIII] A switch suitable for installing under a mattress for giving an indication whether the bed has been vacated, comprises a pair of synthetic resin discs 1, 2 spaced apart by resilient buffers 3, e.g. of sponge rubber, secured to disc 1. A screw 4 is secured by a nut 5 to disc 1 and extends freely through an aperture in disc 2 to which is bolted a metal annulus 6 having a slightly-larger aperture. A nut 8 is normally screwed down against annulus 6 to impart a certain compression to buffers 3, but when the weight of an occupant is applied to disc 2, the circuit between parts 6, 8 is broken and only re-made when the occupant leaves the bed. The switch is connected in series with a battery and parallel-connected buzzer and lamp, an attendant's master switch being mounted with the lamp on the sloping front of a box containing the buzzer and battery and having a plug-coupling at the back (Figs. 3, 4, not shown). The switch is intended to be used with disc 2 uppermost and a cover 9 protects the contacts, but according to the Provisional Specification the arrangement may be used inverted and the screw provided with a small metal flange and lock-nut.
Patent GB-179711-A (GB)
Title: Improvements in straining couplers or fasteners for the ends of chains
IPC: B60C27/10
Filed: 1921-02-22
Abstract: 179,711. Keltner, A. L. Feb.22,1921. Hooks, spring, safety, slip, and closed.-A lever straining-coupler or fastenerdevice for chains, for example the main and lateral non-skid chains used with pneumatictyred vehicle wheels, consists of double fingers or frame members F, to which one end B of the chain is permanently secured by a pin e. At the opposite end these fingers have a recess x, and pivoted close thereto is a lever E, the pivot f being out of alignment with the recess and the pivot e at the upper end. The lever is also recessed, and when the loose end B<1> of the chain is slipped over it, as shown in Fig. 4 by dotted lines, the end may be forced in to the recess in the finger frame by the closing of the lever against a stop-pin g accompanied by a straining action upon the chain. In this position the arrangement is selflocking, so long as the chain is in tension. The method of use with the lengthways and crossmembers of anti-skid pneumatic tyre chains is described.
Patent GB-564930-A (GB)
Title: Improvements in or relating to radio apparatus and tuning mechanism therefor
IPC: H03J5/12
Filed: 1943-04-15
Abstract: 564,930. Electric selective control systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 15, 1943, No. 6021. Convention date, May 30, 1942. [Class 40 (i)] [Also in Group XXXVI] Radio apparatus includes a tuning mechanism comprising one or more actuating elements, a plurality of selector elements, each of which is arranged to be actuated by an actuating element to tune the apparatus to a predetermined frequency and means for causing a relative displacement between said actuating element or elements and said selector elements to enable different selector elements to be actuated by a single actuating element. As shown in Fig. 3, tuning is effected by adjustment of a condenser J by means of a rotatable gear-wheel F coupled to a disc E by rods D, D<1> which are rotated into selected positions by the engagement of adjustable stop bars C<1> carried by a set of spring-returned actuators B<1> ... B<10>. The actuators comprise two groups, the odd numbers and the even numbers, corresponding to the wave ranges, and are operated by push-buttons A<1>. . . A<5> shown in a position to engage the odd number actuators. To operate the even number actuators, a carriage R supporting the push-buttons is moved to the right by means of the waverange switch V so that the push-buttons are now opposite the even number actuators. This movement also alters the station names visible through windows in the dial plate. Alternatively, the actuator assembly may be movable by the wave range switch. Manual tuning may be effected by a knob X driving disc E through a gear Z. The actuators B<1> . . . B<10> may control electric switches for effecting electrical tuning.
Patent GB-698127-A (GB)
Title: Improvements in or relating to the production of tetrafluorodichloroethane
Inventor: ROBERTS ROBERT
IPC: C07C17/04
Filed: 1951-03-14
Abstract: 1,1,2,2 - Tetrafluoro -1,2 - dichloroethane is produced by a process which comprises reacting chlorine and tetrafluoroethylene in the presence of an organic liquid diluent which is substantially unreactive towards the reactants and reaction product while exposing the system to actinic radiation.  Carbon tetrachloride may be employed as diluent and a reaction temperature at which the desired product distils is preferred. The process may be carried out continuously by passing tetrafluoroethylene and chlorine into a vessel containing carbon tetrachloride whilst the system is exposed to actinic radiation. An inert gas such as nitrogen may be passed into the free space above the carbon tetrachloride.  In an example chlorine and tetrafluoroethylene are passed into carbon tetrachloride under nitrogen in a glass vessel exposed to light from a mercury-vapour lamp emitting light of various wavelengths including those in the range 3600 to 4400  .  The product which distils over is collected in a low-temperature trap and fractionated and is mainly 1,1,2,2-tetrafluoro-1,2-dichlorethane.
Patent GB-483348-A (GB)
Title: Improvements in television and like receiving apparatus
IPC: H04N5/08
Filed: 1937-03-01
Abstract: 483,348. Television receivers. GENERAL ELECTRIC CO., Ltd., and EDWARDS, G. W. March 1, 1937, No. 6062. [Class 40 (iii)] Synchronizing signals are isolated by a suitably biassed valve, e.g. a diode 5, whose capacity is neutralized, e.g. by a condenser C1. The line and frame synchronizing signals are separated by transformers 8, 9; the primary of the line-frequency transformer 8 connects the condenser C1 to the diode, and is centretapped so that energy transferred over C1 is equal and opposite to that transferred capacitively over the diode 5. No neutralizing is applied to the frame-frequency transformer since the admittance of the capacity of the diode is negligible at frame frequency.
Patent GB-855381-A (GB)
Title: Semiconductor device
IPC: H01L23/10
Filed: 1957-02-25
Abstract: 855,381. Semiconductor diodes. SARKES TARZIAN Inc. Feb. 25, 1957 [March 9, 1956], No. 6205/57. Class 37 A semiconductor diode comprises a housing containing a PN junction semiconductor element held between a first terminal member and a second terminal member resiliently pressed against the opposite face of the element. In one embodiment (Fig. 2) the PN junction element is prepared as described in Specification 855,382 by applying to one face of an antimony doped wafer of monocrystalline N type silicon a dot of aluminium gallium alloy followed by a dot of pure tin and applying a sheet of tin to the other face. The assembly is then fired at 950 ‹C. Alternatively the element is made by fusing a dot 23 containing antimony and a superposed dot of tin to a wafer 11 of monocrystalline P type silicon. The tin, due to its softness, prevents strains being set up in the crystal during the recrystallisation process. The tinned side of the element is next soldered to boss 24 on the double threaded stud 18. A second sub-assembly is formed by soldering a flexible copper cable 27 into a recess in the locating boss 30 of silver stud 26. The cable is then threaded through a resilient washer 28 e.g. of silicone rubber, rubber or resilient metal, and double threaded stud 13, and hermetically sealed into the end of the stud by dipping in molten solder. Silicone washers 20, coated with an epoxy resin cement, are slipped over the respective studs 18, 19, which are then screwed into the tubular ceramic housing 17 into the position shown in Fig. 2 in which washer 28 is slightly compressed. When the expoxy resin is cured the device is ready for use. Cooling may be facilitated by extending the flanges 15, 16 which may be in the form of hexagonal nuts and by threading heat sinks on to studs 18, 19. The pressure of stud 26 on the soft dot 23 causes it to deform so that in the finished device the area of contact is large leading to good electrical contact and heat dissipation which may be further improved by passing a high testing current through the device to fuse the dot to the stud. In another embodiment of the invention shown in Fig. 5 the external threaded part of stud 18 is replaced by a hole 35 into which a supply conductor may be welded or soldered. This construction also differs in that no locating boss is provided on stud 26 and in that the housing is sealed simply by soldering the ceramic housing directly to the flanges 15, 16. The PN junction element may be of germanium instead of silicon.
Patent GB-346110-A (GB)
Title: Improvements in or relating to hosiery frames
IPC: D04B15/64
Filed: 1930-02-26
Abstract: 346,110. Straight-bar knitting- machines. INNES, HENDERSON, & CO., Ltd. and FARRIES, T. H., Victoria Mills, Hawick, Roxburghshire. Feb. 26, 1930, No. 6347. [Class 74 (ii).] To produce on knitting frames of the Cotton, Blackburn or Kiddier type fabrics having solid " patterns as distinct from spliced fabrics, the splicing carrier bars are caused to function as ground carrier bars. On one or each rack bracket an abutment for determining the limit of inward travel of the relative carrier is provided, the usual splicing carrier bar stop on the rack bracket being dispensed with. The limit of outward travel of each bar is determined by the usual adjustable stop. The abutment comprises a cranked rod 5 secured by nuts in a slot 9 of the rack bracket 1. The down turned end 6 of the rod 5 engages an abutment block 7 to determine the limit of inward travel of the rod 4. When near the limit of its outward travel this rod passes through the slot 9. The ground carrier bar 3 is controlled in the outward direction by the abutment 31 and in the opposite direction by a similar stop at the opposite end of the machine. Movement of the bracket 1 in the direction of the arrow E lengthens the travel of the bar 3 and correspondingly shortens the travel of the bar 4.
Patent GB-1093443-A (GB)
Title: Silicon carbine
Inventor: EVANS ARTHUR WALLACE
IPC: C01B31/36
Filed: 1965-02-15
Abstract: Silicon carbide of pigmentary or smaller size is prepared by reacting vaporized silicon oxide with a carbonaceous material (preferably a hydrocarbon) in a radio frequency induced plasma. The reaction zone 2 is surrounded by a coil 9 connected to a radio frequency source. Silicon oxide particles of diameter less than 210 microns, and suspended in an inert gas, are fed in through tube 1.  The carbonaceous material in an inert carrier enters through 4.  The plasma is induced at the end of tube 1 and may be stabilized by a reverse turn at either (or both) ends of the coil. The reaction temperature is less than 2700 DEG  C.  Deposition of Si or C on the porous walls 6 is prevented by a gas, which may be H2, CO or A which is transpired <PICT:1093443/C1/1> through the wall.  The ratio of transpired gas to working gas is between 10:1 and 1:10. The gas stream emerging from the plasma is cooled in a water-cooled heat-exchanger 12 which may contain a cylindrical copper block 15 to aid heat exchange.  The product is collected either by filter bag 17, or by electrostatic precipitation.
Patent GB-849583-A (GB)
Title: Drinking appliance for poultry
IPC: A01K39/024
Filed: 1959-02-25
Abstract: 849,583. Poultry drinking appliances. GORDON, D. Feb. 25, 1959, No. 6458/59. Class 5(2). A poultry drinking appliance comprises a compartment for insertion into a poultry house, the compartment being entirely enclosed apart from an entrance for the poultry, and a trough T removably housed within the compartment and supplied with water via a ball valve B. A removable, perforated platform P, which serves as a droppings tray, is bolted to L-shaped brackets 5 which can be slid into or out of the compartment at will, the brackets also supporting the trough beneath the source of water supply. A plugged aperture W is provided in the base of the compartment for draining away waste water.
Patent GB-1417621-A (GB)
Title: Combination ice crusher and drink mixing appliance
IPC: A47J43/046
Filed: 1973-02-09
Abstract: 1417621 Mixing apparatus SUNBEAM CORP 9 Feb 1973 [14 Feb 1972] 6473/73 Heading B1C [Also in Division A4] A combination ice-crusher and drink-mixer 20 comprises a L-shaped plastics housing 22 containing an auger 38 to crush ice cubes 40, received via a chute 42 from double doors 152, 156, in a barrel 36 and deliver crushed ice at the upper end of the barrel through a discharge port 46 to an opening 50 of a drink-mixing container 28 containing a rotary agitator 208, both auger and agitator being driven by an electric motor 166. Agitator 208, with flutes 216 and arms 218, and toothed clutch 222 are fitted to either ends of a shaft 210 which passes through a sleeve bearing 206 in a bottom wall 200 of container 28, the container also comprising a cover 30, a pouring spout, a strainer 260 and a roughened hand grip. As shown, agitator 208 is driven at the same speed as motor shaft 168. Since shafts 224 and 210 are eccentric in a container-receiving recess 62 and wall 200 respectively, lifting container 28 from the recess, rotating it through 180 and replacing it causes the shafts to be non- aligned and the agitator to be stationary. Water drains from barrel 36 through hole 82 into recess 62. A drive belt 234 passes around a grooved fan 172 on motor shaft 168 and a pulley 232 on one end of a shaft 224 which passes through sleeve bearing 226 in a bottom wall 64 into recess 62, a toothed clutch being fitted to the other end of the shaft.
Patent GB-229506-A (GB)
Title: Improvements relating to couplings or joint boxes applicable to electric cables and conductors
IPC: H02G15/105
Filed: 1924-03-13
Abstract: 229,506. Brown, R. J., and Bevan, D. M. E. March 13, 1924. Earth-continuity couplings.-A junction or coupling box comprises a longitudinally divided casing or coupling element a consisting of two conical portions joined at their bases and collars or sleeves c each formed in two symmetrical parts meeting upon a plane passing through the axis of the casing or coupling member. These parts have lateral extensions which form bosses c<1> through which bolts d pass and after the parts of the sleeves have been clamped about the coned ends of the casing or coupling member, or over the ends of armour wires laid over the coned portions of the same, nuts d<1> upon these bolts are tightened up to secure all together. The casing or coupling member has a filling hole and plug g which may be used to suspend the device. An earth wire e may be connected between the sleeves c.
Patent GB-127556-A (GB)
Title: An Improved Method of Impregnating Gas Balloons and Containers.
IPC: D06M13/224
Filed: 1919-03-15
Abstract: 127,556. Aktieselskabet Frogner Garage & Motor Co., Fro-ga-Mo. May 29. 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Single coatings; fabrics with multiple superposed coatings.-Fabric for gas balloons or containers, particularly for use on motor-vehicles, is coated on the inside with a slowly drying or non- drying oil &c., with or without previously coating the outside or inside of the material with a rapidly drying viscous oil or varnish.
Patent GB-100830-A (GB)
Title: Improvements in the Treatment of Feed Water for Preventing Corrosion and Incrustation in Steam Generators and the like.
Inventor: LARAQUE HENRY
IPC: C02F5/08
Filed: 1916-05-09
Abstract: 100,830. Laraque, H. May 9, 1916. Incrustation and corrosion, preventing. - A composition for this purpose contains tannin, sulphate of aluminium, and barytes in, for example, the following proportions : tannin 10 per cent, sulphate of aluminium 45 per cent, and barytes 45 per cent.
Patent GB-838404-A (GB)
Title: Improvements in or relating to devices for positioning elongated elements such as radiator gills, in magazines
IPC: B21D53/08
Filed: 1958-02-28
Abstract: 838,404. Making gilled radiators; transferring blanks. USINES CHAUSSON S.A., DES. Feb. 28, 1958 [April 5, 1957], No. 6620/58. Classes 83 (2) and 83 (4). In a device for positioning elongated elements, such as radiator gills, in magazines a cam-operated slide supports at least one set of pivotable fittings adapted to receive the elongated elements after shaping, the fittings being constrained to traverse an arcuate path by a pivotable lever controlled by an eccentric on the cam-shaft so that the elongated elements are delivered to a removable magazine, said fittings first moving in a curved guiding channel and then escaping from the channel simultaneously with the actuation of a synchronized pusher for pushing the elements into the magazine. Radiator gills are stamped from continuous strip and after cutting to length by a shear or saw are guided to a spout 4 comprising two plates 5, 6 which form a curved guiding channel 7. An eccentrically-operated pivoted arm 22 oscillates about a spindle 23 and carries a toothed sector 21 which engages a pinion 19 on a shaft 14 in turn carrying pivoting fittings 10, 11 on a lug extending from a sector 13. The fittings 10, 11 and the pivoted arm 22 are mounted on a support slide comprising two cheeks 17, 18 guided by a frame 1. The cheeks 17, 18 have rollers 39, 40 between them which constantly engage a cam 38 mounted on a drive shaft 33 and having all its diameters of constant length so that the slide reciprocates vertically. A completed radiator gill severed from the strip is received by the ends 10a, 11a of the fittings 10, 11, which are at that time fully raised into slots in the spout 4 by the upward movement of the slide 17, 18 and are delivered through the guiding channel 7, which has a radius equal to that of the curved trajectory of the top of the fittings 10, 11, to an oscillating pusher 47 carried on an arm 45 and actuated through a connecting rod 44 by an eccentric attached to the driving shaft 33. The pusher loads the gills into a removable magazine 48. The eccentric 27 mounted on the frame 1 is also geared to the drive shaft 33 which is itself synchronized with the stamping press and shear. The slide 17, 18 falls after delivery of a gill so that the pivoted members 10, 11 return on a lower trajectory and do not re-enter the slots in the spout until another gill has been fed to the spout but not severed from the strip. In a modification gills stamped by two presses or a duplex press may be delivered by two sets of pivoted fittings mounted on the slide 17, 18, the fittings being geared together by the toothed sector 13 and another similar sector.
Patent GB-280776-A (GB)
Title: Improvements in and relating to the drying of paper, board, pulp and the like
IPC: D21F5/02
Filed: 1927-03-10
Abstract: 280,776. Marx, R. March 10, 1927. Drying materials in long lengths.- Apparatus for drying a web of paper &c. comprises a rotary internally - heated cylinder A over which the web is passed an air or steam-jacketed hood E, perforate ducts G, H. for admitting hot air into the hood, and an exhaust duct F. In a modification, the hot air is admitted through the duct F and exhausted at the ends of the hood. Further, hot air may be admitted at one end of the hood and atmospheric air at the other.
Patent GB-350001-A (GB)
Title: Improvements in or relating to keyboard operated machines such as typewriters and machines for punching or otherwise forming records on statistical cards
IPC: G06K1/06
Filed: 1930-02-28
Abstract: 350,001. Typewriters. ACCOUNTING & TABULATING CORPORATION OF GT. BRITAIN, Ltd., Aldwych House, Aldwych, London, THOMAS, A.,103, Headcorn Road, Thornton Heath, and BLAMEY, R. C. E., 39, Grange Road, Purley Oaks, both in Surrey. I'eb. 28, 1930, No. 6711. [Class 100 (iv).] Carriage - returning mechanism back-spacing mechanism. - In a keytoard operated machine such as a typewriter or a machine for punching or otherwise forming records c statistical cards, a selecting bar or other carriage-return mechanism is controlled by a key-operated clutch which is automatically released after a predetermined movement of the carriage. A rotary member is set into operation for one revolution on depression of a key to return the carriage and independently of the carriage, automatically throws out the clutch when the carriage is returned. A sleeve 1, freely mounted on a shaft 2, is driven from an electromotor M, and carries a ratchet 5. A spring-urged pawl 7 is mounted on a disc 6 freely mounted on the sleeve and geared to a disc 11 serving to operate a carriagereturn pulley 13 as described in 328,255, [Class 31 (ii), Punching and perforating machines &c.]. The ratchet 5 rotates continuously. On depression of a carriage return key a Bowden wire 16 is operated to swing a stop lever 15 to the dotted position, Fig. 3, where it is latched by a lever 17 with pivoted end 18. The pawl 7 engages the ratchet, and the carriage return pulley is operated. A roller 19 on bhe main carriage return disc 11 trips the lever 17 at the end of the return movement to allow a spring to reset the lever 15 to disengage the pawl. To operate the carriage return from the punch key this key may be arranged as in Specification 328,255, or a lever 23 on a continuously rotating shaft 24 is arranged to operate the stop lever 15 through a lever 25. A free-wheel clutch 27, Fig. 4, not shown, is provided to allow either of the driving gears to operate. The sleeve 1 carries a freely mounted eccentric which operates a strap 40 and link 41 connected to a plate 42 by a lever 43 and spring 44. The plate is pivoted to a rack 28 slidable on fixed pins by inclined slots 30. A lever 34 on the carriage carries a pawl 33 and is connected by a link 37 with a restoring lever 38. Depression of a back-space key operates a Bowden wire 50 which swings a stop lever 47, to allow a pawl 45, Fig. 2, not shown, to drive the eccentric for one revolution. This oscillates the rack and on the forward stroke the rack is moved down to engage the pawl 33 and to the left, Fig. 1, to back-space the carriage. The lever 38 restores the set bars. Specification 350,518, [Group VIII], also is referred to.
Patent GB-240784-A (GB)
Title: Improvements in tyre covers for bicycles and the like
IPC: B60C11/04
Filed: 1925-03-12
Abstract: 240,784. Wieser, H. Oct. 3, 1924, [Convention date]. Tread bands, projections, and surfaces.-The tread of a tyre cover is formed with relatively-inclined flat surfaces a, b, c, the side surfaces b, c being provided with pointed ribs r which are directed radially-outwards as shown, to prevent skidding, especially when the tyre rolls.